Take the 2-minute tour ×
Database Administrators Stack Exchange is a question and answer site for database professionals who wish to improve their database skills and learn from others in the community. It's 100% free, no registration required.

I'm experimenting with TitanDB (with Cassandra as storage) + Rexter.

I've been reading the documentation during hours and trying to create multiple graph DBs on the same machine, but I didn't find the way to do it.

I find two main problems:

  • In the TitanDB docs, the Cassandra section tells how to create a graph on cassandra, but the only parameters they comment are the host and the port, there isn't any reference to the graph name :s).
  • In the Rexter section we have essentially the same problem. We can define a list of named graphs, but every graph only can be mapped to a 3-tuple (backend type, host, and port).

The only way I can imagine is to instantiate more than one Cassandra server, and make that each Cassandra server listens to a different port. Then, configure Rexter to map every graph to a different cassandra instance.

There is a way to create more than one graph using the same Cassandra instance?

Thanks in advance!

share|improve this question

1 Answer 1

See https://github.com/thinkaurelius/titan/wiki/Using-Cassandra scroll down to "Cassandra Specific Configuration", and use property "storage.keyspace=" to use multiple keyspaces in cassandra. Each keyspace will hold a graph. (default keyspace is 'titan'.

So, if you want 3 graphs, create 3 config files, with diff "storage.keyspace" property.

When you open a graph from your client using TitanFactory.open(config), use the appropriate config file.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.